/Engine/Source/Runtime/Engine/Classes/EdGraph/EdGraphNode.h
Execute a provided function once for each node that is directly connected to this node's input pins, will not include the node itself Implementation provides an example usage of ForEachNodeDirectlyConnectedIf.
void ForEachNodeDirectlyConnectedToInputs ( [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< void([UEdGraphNode](API\Runtime\Engine\EdGraph\UEdGraphNode) *)> Func )